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13220110120 = 235753890843
BaseRepresentation
bin11000100111111101…
…01101111100101000
31021010022222011210011
430103332231330220
5204033322010440
610023452501304
7645415040050
oct142376557450
937108864704
1013220110120
115674453448
12268b47a834
131328b7a589
148d5aa4560
1552592e9ea
hex313fadf28

13220110120 has 64 divisors (see below), whose sum is σ = 34636014720. Its totient is φ = 4447083264.

The previous prime is 13220110109. The next prime is 13220110121. The reversal of 13220110120 is 2101102231.

It is a self number, because there is not a number n which added to its sum of digits gives 13220110120.

It is not an unprimeable number, because it can be changed into a prime (13220110121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430582 + ... + 460261.

It is an arithmetic number, because the mean of its divisors is an integer number (541187730).

Almost surely, 213220110120 is an apocalyptic number.

13220110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220110120 is an abundant number, since it is smaller than the sum of its proper divisors (21415904600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13220110120 is a wasteful number, since it uses less digits than its factorization.

13220110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890914 (or 890910 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 13220110120 its reverse (2101102231), we get a palindrome (15321212351).

The spelling of 13220110120 in words is "thirteen billion, two hundred twenty million, one hundred ten thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 53 56 70 106 140 212 265 280 371 424 530 742 1060 1484 1855 2120 2968 3710 7420 14840 890843 1781686 3563372 4454215 6235901 7126744 8908430 12471802 17816860 24943604 31179505 35633720 47214679 49887208 62359010 94429358 124718020 188858716 236073395 249436040 330502753 377717432 472146790 661005506 944293580 1322011012 1652513765 1888587160 2644022024 3305027530 6610055060 13220110120